Morning, I’m no mechanic ( go easy) but currently on a 45 min break and had a walk round and just noticed oil sat in one of the wheels on the rear axle of my motor. I’m guessing it could be an axle seal that’s perished, am I ok carrying on without doing further damage and would you defect it half way through your shift in case I get pulled. Thanks.
Hub oil seal no doubt, how far you got to go?
I would phone it in anyway, have gone many a mile with a weeping hub but best be safe.
Jim
It would depend on how much oil there was and how far I had to go.
Scanner:
It would depend on how much oil there was and how far I had to go.
Got about 80 mile to drop, then return home Monday.
Are you sure its oil? It suspect it might be dirty water. Try touching it to see what texture it has and also hub seals hold grease don’t they rather than oil. Also grease wouldn’t pool in the bottom of a wheel rim.
It’s definately oil, although not a lot.
mr lordi:
It’s definately oil, although not a lot.
Employee…Let someone higher make a decision , as if you are wrong its possibly your fault , if you have told them its not your problem , Easy really.
3 wheeler:
mr lordi:
It’s definately oil, although not a lot.Employee…Let someone higher make a decision , as if you are wrong its possibly your fault , if you have told them its not your problem , Easy really.
To be honest, that’s probably the best bit of advice you’ll get.
Deffo sounds like the hub seal perished, had the same problem with the DAF im currently driving, ran it for 3 months and was constantly getting the EBS truck warning displaying on the dash, then one day, went from Shrewsbury down to Basingstoke with no more than 9 ton in my trailer, the brakes were nearly on fire due to the amount of oil spraying onto the discs. got the truck back to the yard, 2 new hubs, discs and pads later and theres no problems at all,.
Keep an eye on it, defect it and mention to your boss, as the last thing he needs is for it to go ■■■■ up and then him paying a fortune to have you recovered.
If its the outer wheel it might be the halfshaft leaking
Wiretwister:
Are you sure its oil? It suspect it might be dirty water. Try touching it to see what texture it has and also hub seals hold grease don’t they rather than oil. Also grease wouldn’t pool in the bottom of a wheel rim.
I wouldn’t be touching it. Could be someones ■■■■ for all you know!
Half Shaft seal is leaking… needs taking out cleaned and new mastic putting on for a new bond and then diff box oil topping up to replace the oil that comes out.
Nowt major.
neversweat1:
If its the outer wheel it might be the halfshaft leaking
And if it’s on the inner wheel, that’s a very thorough walk-around check you do 
As already mentioned it is an oil seal leak and an out of service if stopped by your beloved VOSA. It also means the brakes on that wheel are not working because … well ! oil covered brakes do not work and believe me the brakes will be covered.
Is it a Daf? Always happens on a Daf!
if a hub seal leaks on a drive axle, oil shouldnt go onto the disc due to there being a drilling in the hub so that the diff oil goes through the drilling and straight onto the outer wheel. the first thing to check is for a blocked diff breather, allowing the diff oil to pressurise and come out off a seal.
ramhead:
if a hub seal leaks on a drive axle, oil shouldnt go onto the disc due to there being a drilling in the hub so that the diff oil goes through the drilling and straight onto the outer wheel. the first thing to check is for a blocked diff breather, allowing the diff oil to pressurise and come out off a seal.
quite right, volvo have or did have had this set up for many years even on drums my old f6 on a b reg even had this with the hole through the hub, daf do seem prone to this as i have seen the oil on the inner wheel before, even on quite new trucks i dont know if it gets on the brakes or not due to not ever doing much work on any type of daf
I forgot, you live in a civilised and technologically advanced country, we don’t have disc brakes on trucks here, they should be invented in about 20 years, long after I retire.
Problem is they dont put a one way valve in the axle breather no more.
as the diff got warm the air was pushed out the axle then as it cooled negative pressure pulled air in through the hub seals keeping the hubs dry.
unfortunately now the people who "design"trucks dont know their ■■■ from their bloody elbow.
Morning, it’s not a daf, it’s an man wag&drag. Well, I carried on to the job with no problems and checked again and there was not as much oil leaking now. Going down this morning to check it again.